2 years ago

Please help, I’ll mark your answer as brainliest!

Mathematics

1 answer:

eimsori [14]2 years ago

7 0

The answer would be
7b+4

You might be interested in

Pat has 3 rows of shells. There are 4 shells in esch row. how many shells does pat have?

vazorg [7]

Answer:

The answer is 12

Step-by-step explanation:

3 0

2 years ago

Find the geometric mean between each pair of numbers.. 25 and 16

Diano4ka-milaya [45]

Answer:

Step-by-step explanation

√(25)(16)

4 0

2 years ago

The height of the tunnel at the center is 54 ft, and the vertical clearance must be 18 ft at a point 8 ft from the center. Find

IrinaVladis [17]

the standard form for a horizontal ellipse is

X^2/a^2 + y^2/b^2 = 1

Substitute 54 for b and and use (8,18) as the

point to find a

x=8

y=18

8^2/a^2 + 18^2/54^2 =1

64/a^2 + 324/2916 = 1

324/2916 reduces to 1/9

64/a^2 + 1/9 = 1

64/a^2= 1-1/9

64/a^2 = 8/9

64*9/8 = a^2

576/8 = 72

A^2 = 72

A = square root(72) = 8.485

So formula

would be x^2/72 + y^2/2916 =1

8 0

2 years ago

Convert Зcis 180° to rectangular form. А. -3 в. -3i с. з D. Зі.

Sunny_sXe [5.5K]

Answer:

-3

Step-by-step explanation:

$3 cis(180^\circ)$ means $3(\cos(180^\circ)+i \sin(180^\circ))$

What is the $x$ -coordinate value that corresponds to $\theta=180^\circ$ . That value is -1.

What is the $y$ -coordinate value that corresponds to $\theta=180^\circ$ . That value is 0.

So this implies $\cos(180^\circ)=-1 \text{ and } \sin(180^\circ)=0$ .

$3 cis(180^\circ)$

$3(\cos(180^\circ)+i \sin(180^\circ))$

$3(-1+i (0))$

$3(-1+0)$

$3(-1)$

$-3$

5 0

2 years ago

Which of the following expressions are equivalent to -5+7-(-3).

SpyIntel [72]

Answer:

Step-by-step explanation:

mark brainliest its just in different form

7 0

2 years ago

Read 2 more answers